Mitsumi electronic PKA-A18HA4 Operation Procedure, Removing the Nozzle Assembly with Vane Photo

Page 31

OPERATION PROCEDURE

 

PHOTOS

 

 

5. REMOVING THE NOZZLE ASSEMBLY (with VANE

Photo 7

 

Electrical box cover (side)

and VANE MOTOR) AND DRAIN HOSE

 

Electrical box cover (top)

 

 

Screw (side cover)

 

(1) Remove the front panel (Refer to step 2).

 

Screw (top cover)

 

 

 

 

 

 

 

(2) Remove the electrical box cover.

 

 

 

 

 

(3) Disconnect the vane motor connector (CN151) on the

 

 

 

 

 

indoor controller board.

 

 

 

 

 

(4) Remove the corner box.

 

 

 

 

 

(5) Pull the nozzle assembly and detach.

 

 

 

 

 

(6) Push the fixture and remove the drain hose.

 

 

 

 

 

 

 

Switch board cover

Screw

 

Nozzle assembly

Holder of

(side

 

cover)

 

 

 

IR wireless

 

 

 

 

controller board

 

 

 

 

 

6. REMOVING THE INDOOR FAN MOTOR AND THE

Photo 8

Motor band

Water cover

LINE FLOW FAN

 

 

 

 

 

(1) Remove the front panel (Refer to step 2) and the corner

Heat

 

 

 

 

box at right lower side.

exchanger

 

 

 

 

 

 

 

 

 

(2) Remove the electrical box (Refer to step 4) and the nozzle

 

 

 

 

 

assembly (Refer to step 5).

 

 

 

 

 

(3) Remove the screws fixing the motor bed. (See Photo 8)

 

 

 

 

 

(4) Loosen the screw fixing the line flow fan. (See Photo 9)

 

 

 

 

 

(5) Remove the motor bed together with fan motor and motor

 

Screws of the motor bed

 

 

band.

 

 

 

Photo 9

 

 

 

 

(6) Release the hooks of the motor band. Remove the motor

 

 

 

 

 

 

 

 

 

band. Pull out the indoor fan motor.

 

 

 

 

 

(7)Remove the screws fixing the left side of the heat exchanger. (See Photo 10)

(8)Lift the heat exchanger, and pull out the line flow fan to the lower-left.

Photo 10

Screws of the

 

Screw of the

left side of the

line flow fan

heat exchanger

7. REMOVING THE VANE MOTOR

Photo 11

(1)

Remove the nozzle assembly. (Refer to step 5)

 

 

 

Screws of the vane

(2)

Remove the screws of the vane motor unit, and pull out

 

 

motor unit

 

the vane motor unit.

 

 

 

 

(3)Remove the screws of the vane motor unit cover.

(4)Remove the vane motor from the vane motor unit.

(5)Disconnect the connector from the vane motor.

Screws of the vane motor unit cover

31

Image 31
Contents Parts Catalog OCB483 ContentsPUZ-A18/24/36NHA4-BS PUY-A12/18/24/36NHA4 Service Ref PUZ-A18/24/36NHA4Remote controller Optional parts Reference ManualAlways Observe for Safety Safety PrecautionPart Names and Functions Refrigerant recovery equipmentOperation Section Display SectionTimer display Operation Mode displayMode Select button Temperature setting displayService Ref SpecificationsPKA-A12HA4 PKA-A18HA4 Noise Criterion CurvesUnit inch mm Outlines and DimensionsTB5 Wiring DiagramHeat exchanger Refrigerant System DiagramTroubleshooting TroubleshootingWired remote controller MALFUNCTION-DIAGNOSIS Method by Remote ControllerCase of trouble during operation U9,UH Remote controller wire short Wired remote controller LED 1, 2 PCB in outdoor unitUnit’s power terminal block L1, L2, GR Appear even when operationSELF-DIAGNOSIS Action Table Operating Pipe temperatureCondenser-Evaporator TH5 Cause Countermeasure Pipe temperature thermistorRemote controller transmission ErrorE0/signal receiving errorE4Indoor/outdoor unit communication Error Signal receiving errorError Transmitting error Remote controller control boardController Troubleshooting by Inferior PhenomenaPhenomena Cause Countermeasure 1Upward/downward vane Performance failureCooling Only type When the remote controller cannot be usedEmergency Operation Heat pump typeThermistor HOW to Check the Parts PKA-A12HA4 PKA-A18HA4Lower temperature Condenser/evaporator temperatureSensor signal check Test Point Diagram Functions of DIP Switch and Jumper Wire System constraint Special FunctionOperation Rotation function and Back-up function Outline of functions2nd unit Cut-out Request Code ListRotation setting 2nd stage cut-in settingOutline of functions How to connectSetting method of each function by wired remote controller BACK-UP Heating Function CN152Forward to remove the front panel. See Photo Disassembly ProcedureOperation Procedure Photos & Illustrations PhotoOperation Procedure Photos Removing the Nozzle Assembly with Vane Photo Operation ProcedureVane Motor and Drain Hose Board Remove the room temperature thermistorDisconnect the connector CN20 on the indoor controller Remove the electrical box coverPage Page Page New publication, effective Nov

PKA-A18HA4, PKA-A12HA4 specifications

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